function is_int(x)
	return math.ceil(x) == x
end

x = {10.1, 2}
for i = 1, #x do
	print(x[i])
	print(math.floor(x[i]), math.floor(x[i]) == x[i])
	print(math.ceil(x[i]), math.ceil(x[i]) == x[i])
	print()
end

--print(1 .. 23.4 .. 0xc)
--print(3 + 2 .. 1)
s = 'сёнэн: shonen / seinen???¿?'
for i = 1, #s do
	--print(string.sub(s, i, i))
end

s = 'hello world'
print(string.find(s, '((l*)(o+))'))
print(string.match(s, '((l*)(o+))'))
for x in string.gmatch(s, '((l*)(o+))') do
	print('"' .. x .. '"')
end
